某种行业或业务范围以内within the industry

• 超市优惠政策向连锁企业倾斜，不分业内业外，鼓励其他行业参与。

  The supermarket's special offer policy is inclined towards chain stores, no matter whether inside or outside the industry, as they encourage other businesses to participate.

• 业内专家认为，“A”标的出台，将净化当前的音响市场。

  Experts from within the industry reckon when the "A" standard goes on sale, it will help to regulate the current stereo sound system market.